Teat-cup for milking apparatus.



PATENTED JAN. 7, .1908.

E.E.GO0D. TEAITGUPPORMILKING'APPARATUS.

APPLIOATION FILED FEB. 11. 1907.

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EzRA E'GOOD, OF WATERLOO, IOWA.

TEAT-CUP FOR MILKING APPARATUS.

No. 875,802. Specification of Lettera Patent. I

Patented Jan. 7, 1908.

Application illed February 11. 1907. SerialNo. 856.673.

To all whom it 'may concern.'

-Be it known vthat I, EzRA E. GOOD, a citi'- zen of the United States, residing at Waterloo, in the county of Blackhawkv and State of Iowa, have invented certain new and useful Improvements in Teat-Cups for Milking Aparatus; and I do hereby1 declare 'the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use thesame.

M invention relates to milking apparatus and as for its object to provide an improved teat cup in which the milking action 1s very similar to that produced by the hand.

To the above ends the invention consists 'of the noveldevices and combinations of devices hereinafter described and defined in the claims.. f .u

In apparatus, as is Well known,

A milk is drawn from the cow b suction prorious forms, is. illustrated in its preferred form, in the accompanying drawings, Wherein like characters indicate like parts throughout the several'views.

Referring to the drawings, Figure 1 is a side elevation-of the im roved teat cup. Fig. 2 is a vertical longitu inalsection taken centrally through the improved teat cup; and Fig. 3 is a transverse section taken on the line as :c5 of Fig; 1. A

The bod of the teat cup is preferably in the form of, a slightly tapered tube 1. having a contracted neck 2 at its discharge end to which one of the suction tubes 3 of the milking apparatus is attached.' The said body 1-2 may be constructed of metal or other suitable material, but would preferably be constructed from vulcanized rubber. To the large or receiving end thereof is shown as applic a soft rubber ca 4- havin a large central perforation 4 t oughwIiich the teat may be inserted, l

At one sideor, as shown, at the bottom,

the tubularl body 1 is provided with a large lo 'tudinally extended o e V.5 that'afi025; a passage through 'wlhjizllllllvgvorks a hollowisqueezing ,block 6, Aalso preferably constructed from vulcanized rubber. In cross Section, this so-called squeezing block 6 1s .preferably convex or rounded at its inner portion, and approximately fiat at its outer ortion. In longitudinal section, the said block is preferably tapered in a direction from the receiving toward the delivery end of the tubular body l. To the outer portion of said squeezing block is attached a llexible diaphragm 7 referably of rubber, the niargin of which iaphragm is securely attached to the tubular body 14 surrounding thc opening 5 thereof. Thls flexible diaphragm permits the s ueezing block 6 to move laterally inward an outward through the opening. Attached to said block 6 is a leai` spring 8,' the outwardly projected ortion of which is fulcrumed at `9 to a s lit c amping rin 10 applied to the tubular body 1 near its elivery end. A'l small adjusting screw 11 is passed through a perforation ,in the end of the spring 8 and is screwed into the delivery end portion of the tubular body 1. The spring 8 ytends to throw the squeezing block 6 Outward or into a retracted position and, by ad-f justments of the screw 11, the force under which said spring will act may be varied, so

as to set the same for proper action in harmony with suction pulsations of different theldevice, the teat is, of.`

so-called squeezing block 6 will be drawn inr -f ward and will press the teat with a ressure that is greatest at the vreceiving en of the cup, and decreases toward the delivery or lower end thereof, this bein an action, as is obvious, which greatly facilitates in drawing the milk. The inward movement of the `block 6 is, of course, due to the excess of the atmospheric pressure over that within the cup, and it is of course evident that external ressure on ractically' the entire outer surace ofthe diaphragm' 7 will be effective in forcin' the said squeezing block inward. The b ook will, therefore, bedraw-n inward 85 intensity roduced in the milking apparatus under considerable force, even under slight reduction in the internal pressure, or cthei1m Wise stated, under slight suction Within the teat sup. `The pressure under Which the squeezin block Will act may, as already indicate be varied by adjustments 9i the screw 11.'so as to thereby vary the outward force of the spring 8.

l believe it to be broadly new to provide a teat cup With a laterally movable squeezing block or device, and, hence, desire to claim the same broadly.

What i claim is:

l. A teat cup having a laterally movable squeezing block and a pliable diaphragm yieldingly connectin said block to said cup, and which block an diaphragm are subject to atmospheric pressure, Substantially as described. A I

2. The combination with a teat sup having an opening at one side, ei a squeezing bleek spring, substantia srt/essa Working through said opening and-connected at one end to said Cup, a pliable diaphragm yieldinglyponneeting said block to said cup,

and a spring yieldin l ressi said block 25 y P Dg an opening in one side, of a squeezin block 3G Working through said opening and yie dingly attached to said cup at one end, a pliable diaphragm connecting said block te said cup, a spring yieldingly (pressing said block outward,

and means for a usting the tension of said ily as described. in testimony whereof i aiir my signature in presence of tWo Witnesses.

EZRA E. GOUD. f Witnesses: l

MAME Henin2 fr". D. MERCHANT. 

